43021233243 has 16 divisors (see below), whose sum is σ = 67484288160. Its totient is φ = 26993714688.

The previous prime is 43021233191. The next prime is 43021233251. The reversal of 43021233243 is 34233212034.

It is not a de Polignac number, because 43021233243 - 2³² = 38726265947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (43021233263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46863630 + ... + 46864547.

It is an arithmetic number, because the mean of its divisors is an integer number (4217768010).

Almost surely, 2^43021233243 is an apocalyptic number.

43021233243 is a deficient number, since it is larger than the sum of its proper divisors (24463054917).

43021233243 is a wasteful number, since it uses less digits than its factorization.

43021233243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93728203 (or 93728197 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 43021233243 its reverse (34233212034), we get a palindrome (77254445277).

The spelling of 43021233243 in words is "forty-three billion, twenty-one million, two hundred thirty-three thousand, two hundred forty-three".